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Finding the Fourth Proportional to 251,761.97, 347,421.22 and 144,257.22

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Solution

The fourth proportional to 251,761.97, 347,421.22 and 144,257.22 is: 199,069.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,761.97 : 347,421.22 = 144,257.22 : x
  2. Step 2: Convert to fraction form
    251,761.97/347,421.22 = 144,257.22/x
  3. Step 3: Cross multiply
    251,761.97x = 347,421.22 × 144,257.22
  4. Step 4: Simplify right side
    251,761.97x = 50,118,019,005.57
  5. Step 5: Solve for x
    x = 50,118,019,005.57/251,761.97
  6. Step 6: Final answer
    x = 199,069.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.